201216252 has 24 divisors (see below), whose sum is σ = 472103632. Its totient is φ = 66700800.

The previous prime is 201216193. The next prime is 201216271. The reversal of 201216252 is 252612102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44149 + ... + 48492.

Almost surely, 2^201216252 is an apocalyptic number.

It is an amenable number.

201216252 is an abundant number, since it is smaller than the sum of its proper divisors (270887380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201216252 is a wasteful number, since it uses less digits than its factorization.

201216252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92829 (or 92827 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 201216252 is about 14185.0714485335. The cubic root of 201216252 is about 585.9866001976.

Adding to 201216252 its reverse (252612102), we get a palindrome (453828354).

The spelling of 201216252 in words is "two hundred one million, two hundred sixteen thousand, two hundred fifty-two".